Skywalk PT1

Skywalk PT1 is designed to accept ERC1155 conditional token prediction market positions. This represents the predominant design of EVM-based prediction markets. The minting and redemption interfaces are entirely self-contained within the EVM versions of PT1.

Reference Contract

Polygon: 0xB1dbf169e5091927E0618176C4cB272C9E0c1c34

Factory

As a security measure, Skywalk will only recognize alternative tokens deployed through the factory smart contract.

Polygon: 0x9CcCA3D8cCbeEEd856C072C115bcE49a29145355

Skywalk Router

The router contract consolidates approvals to make minting multiple prediction tokens easier. It is not compatible with alternative tokens.

Polygon: 0xBB1346dFadde111C6DCa04fC328b9f25eCa8d5c1

Decimals

• EVM Chains: 18

Schema

Required Variable	Usage
SKYWALK_REGISTRY_ADDR	Skywalk Registry Address. Alternative tokens can use the 0 address
MARKET_ID	Skywalk Market ID. Alternative token issuers can request their own ID block
SKYWALK_PT_EDITION	Skywalk Prediction Token Edition
OUTCOME_HASH	A hash of the MARKET_ID, External Condition Hash and the specific outcome/side (YES or NO)
PAIR_HASH	A hash of both outcome hashes for a particular condition
EXTERNAL_ERC1155_ID	The ID of the acceptable ERC1155 token from the underlying exchange. Each Prediction Token will only be mintable when depositing ERC1155 tokens matching this ID.

Optional Variable	Usage
SKYWALK_META_PAIR_HASH	Skywalk Meta Pair Hash. Use 0 hash if not available.
SKYWALK_META_PAIR_SIDE	Skywalk Meta Pair Side. Use FALSE if not available.

Skywalk Meta Pair Hashes refer to matching prediction markets at different exchanges.

Exchange-Specific Parameters

External Condition Hash:

• Polymarket: conditionId as defined by their Gamma API

Ways to Mint

Skywalk PT1 has been designed to make it easy to accept ERC1155 tokens from users who hold it within a single-signer Gnosis SAFE along with more advanced users who manage these tokens directly.

Mint Source	Mint Destination	Function to Call
Gnosis SAFE	Controlling Wallet	mintToSafeOwner
Holding Wallet/SAFE	Holding Wallet/SAFE	directMint

Ways to Redeem

Because Polymarket conditional tokens use 6 digits of decimal precision, any Prediction Token redemption amounts that cannot be converted to at least one-millionth of an ERC1155 will be considered dust and burnt.

Users may redeem tokens to the destination of their choosing by calling the redeemForErc1155 function.

Burn Functionality

PT1 tokens retain their native ERC-20 burn functionality. This may be useful when the underlying positions expire at 0 value. Direct burns will trap an equivalent amount of the underlying tokens in the PT1 contract forever and do not affect the redemption rate.